Models CA-1307 and CA-1309 provide a tilt base installation which does not require the expense of interconnecting hydraulic and/or electric lines or the installation of remote controls usually associated with this type of equipment. In the event that remote operation is desired, the hydraulic system module has been designed so that it may be physically detached from the tilt base and removed to a remote operating area.
The tilt actuating mechanism consists of a hydraulic cylinder energized by a hand operated pump, with a spring-centered four-way control valve for selecting direction of operation. A counterbalance valve, together with the control valve, is, in effect, a hydraulic safety lock, which secures the antenna immediately in any intermediate position should operation of the hand pump be interrupted.
The CA-1309 is identical to the CA-1307 except all ferrous materials have been removed, creating a nonmagnetic design.
The equipment has been designed and constructed to meet MIL-S-901(C), Grade A Shock; MIL-STD-167, Type I Vibration, and all service conditions of MIL-E-16400(G), exposed (unsheltered) equipment.
